The footage showed his vehicle had collided with another car, believed to have been driven by Finnish driver Patrik Pasma.

In a statement, organisers said: "Monger has been carefully extracted from the car after suffering leg injuries, and has since been airlifted to the Queen's Medical Centre in Nottingham for further examination.

"Pasma was also carefully extracted from his car.

"He was fully conscious and immediately taken to the on-site medical centre. He has since been taken to the Queen's Medical Centre for further assessment. Further information will be provided in due course."

Pasma's vehicle was believed to have stopped on the track when the collision took place.

Commentators described the crash as "horrendous", saying "he just couldn't see him" amid speculation Pasma may have broken down.

The race - during Round Six of the British Formula 4 Championship - was red flagged while the incident was dealt with. Racing resumed at about 3pm.

Broadcaster ITV4 has reportedly confirmed Monger was conscious as he was being attended to.

Pasma's team, Carlin Racing, posted on Facebook: "Following an incident in race three of the Formula Four British Championship at Donington Park this afternoon, Carlin driver Patrik Pasma was taken to the on-site medical centre for assessment.

"Patrik, who is fully conscious and able to communicate with team personnel, will now be transferred by ambulance to the Queen's Medical Centre in Nottingham for further checks and observation overnight.

"Our thoughts remain with Billy Monger who was also involved in the incident."

Donington Park (Image: PA)

Monger, from Charlwood, Surrey, refers to himself on Twitter as Billy The Whizz.

On his team's website, he says he has been crowned British Champion twice but "for 2017 it's my time to become the British F4 Champion".

"I strive for the win in everything I do. This is the only goal in my mind, to be the best. Ever."

Monger has also won multiple races across the World Karting Championship, Ginetta Junior Championships and 2016 F4 British Championships.